Joao de Souza Mendes Jr. vs Carlos Enrique Guimard
Mar del Plata Zonal Mar del Plata ARG round 2 1951.03.16
Ruy Lopez: Morphy Defense, Modern Steinitz Defense 1/2-1/2

Joao de Souza Mendes Jr. vs Walter Oswaldo Cruz
BRA-ch Rio de Janeiro BRA round 7 1928.09.??
Alekhine Defense: Modern Variation 0-1